Charlton W W T P
Charlton, MA · Worcester County · Publicly Owned Treatment Works
- Average flow
- 0.31 MGD
- Design flow
- —
- NPDES permit
- MAG580039
- Effective
- Permit expires
- November 2026
- Population served
- —
- CWNS 2022
Charlton W W T P is a publicly owned wastewater treatment plant in Charlton, Worcester County, Massachusetts treating an average of 0.31 million gallons per day. Treatment on site includes clarifiers. It discharges under NPDES permit MAG580039 (effective), which expires in November 2026, with 129 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 129
- Effluent violations
- 91
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
4 verified contacts for Charlton W W T P, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Charlton W W T P, plus the full compliance history and discharge data.
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Charlton W W T P: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated November 29, 2025.